Improvement in combined knife and measuring-rule



G. WALDMAN & D. FRANK. Combined Knife and Measuring Rule.

No. 208,654. Patented Oct. 1, 1878.

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N. PUERS. PKOTO-LITHOGRAPHER, WASHINGTON, D C.

UNITED STATES PATENT QFFIOE.

GEORGE WALDMAN AND DAVID FRANK, OF ALLENTOWN, PENNSYLVANIA.

IMPROVEMENT IN COMBINED KNIFE AND MEASURING-RULE.

Specification forming part of Letters Patent No. 208,654, dated October1, 1878; application filed July 17, 1878.

To all whom it may concern:

Be it known that we, GEORGE WALDMAN and DAVID FRANK, both of the city ofAllentown, in the county of Lehigh and. State of Pennsylvania, haveinvented a new and useful Improvement in Pocket-Knives, whichimprovement is fully set forth in the following specification, referencebeing had to the accompanying drawings.

The object of our invention is to make an improved article used bymechanics and others who use levels, gages, and rules, and so combinethem in one with the knife as to lessen their cost and make the use andcarrying convenient.

The improvements consist in the graduated scale on the handle of theknife and gage or caliper-rule, Figure 4, B, which is to answer thepurposes of a foot-rule and caliper, and may be made of any desiredlength.

The level is a new design and new invention, as shown in Fig. 1, A.

The improvements are illustrated in detail. Fig. 1 is a side elevation,and shows the level attachment at A. It consists of a circular openingin the handle scale, covered with glass, underneath which is secured ametal plate, to which is attached a movable needle, heavy at one end, ona small pivot. The plate is graduated in such a manner that when theknife is brought to a horizontal position on its back, or in a verticalposition, the point of the needle coincides with the engraved lines onthe plate. Fig. 2 is an end view of the caliper-rule as attached to thehandle of the knife. Fig. 3 is a transverse section through the line AB, and shows the combination of the several parts of the attachments.Fig. 4 is the opposite side elevation of the knife, and shows theattachment of the caliper-rule and scale. It is composed of a cast-steelslide, inserted as shown at B, Fig. 3, and stop, as shown at B, Fig. 2.The scale may be graduated as desired. Fig. 5 shows a top view of thecaliper-rule and back of the knife.

We claim as our invention- 1. A pocket-knife provided with alongitudinal slot, within which is inserted a grad nated caliper-rulehaving a head of a size to fit the butt of the knife, as and for thepurposes set forth.

2. The within-described compound implement, consisting of thepocket-knife with fiat back and square end, one of the sides beinggraduated, and the sliding caliper-rule B, having a head of a size tofit the butt of the knife, substantially as herein set forth.

GEORGE WALDMAN. DAVID FRANK. W'itnesses:

GEORGE F. RUPP, EDWARD RUHE.

